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Oilfield Flange Slide Rule API6A (ISO 10423)
1 13/16"
2 1/16"
2 9/16"
3 1/16"
3 1/8"
4 1/16"
5 1/8"
7 1/16"
9"
11"
13 5/8"
16 3/4"
18 3/4"
20 3/4"
21 1/4"
26 3/4"
30"
FLANGE SIZE (NOMINAL)
10M
15M
20M
2000
5000
10M
15M
20M
2000
5000
10M
15M
20M
2000
3000
5000
10M
15M
2000
3000
5000
10M
20M
2000
3000
5000
10M
15M
20M
2000
3000
5000
10M
15M
20M
2000
3000
5000
10M
20M
10M
15M
2000
3000
5000
2000
3000
5000
10M
20M
2000
3000
2000
3000
5000
10M
2000
3000
2000
5000
10M
5000
10M
15M
20M
3000
15M
15M
15M
5000
MAXIMUM SERVICE PRESSURE RATING
STANDARD RING NUMBER
PRESSURE ENERGIZED RING NUMBER
Types of API6A/6B/BX Flanges, Spools, Adaptors & Connectors
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